clang/test/Layout/ms-x86-bitfields-vbases.cpp

   1 // RUN: %clang_cc1 -fno-rtti -emit-llvm-only -triple i686-pc-win32 -fdump-record-layouts -fsyntax-only %s 2>&1 \
   2 // RUN:            | FileCheck %s
   3 // RUN: %clang_cc1 -fno-rtti -emit-llvm-only -triple x86_64-pc-win32 -fdump-record-layouts -fsyntax-only %s 2>/dev/null \
   4 // RUN:            | FileCheck %s -check-prefix CHECK-X64
   5
   6 struct B0 { int a; };
   7 struct B1 { int a; };
   8
   9 struct A : virtual B0 { char a : 1; };
  10
  11 // CHECK: *** Dumping AST Record Layout
  12 // CHECK: *** Dumping AST Record Layout
  13 // CHECK-NEXT:    0 | struct A
  14 // CHECK-NEXT:    0 |   (A vbtable pointer)
  15 // CHECK-NEXT:    4:0-0 |   char a
  16 // CHECK-NEXT:    8 |   struct B0 (virtual base)
  17 // CHECK-NEXT:    8 |     int a
  18 // CHECK-NEXT:      | [sizeof=12, align=4
  19 // CHECK-NEXT:      |  nvsize=8, nvalign=4]
  20 // CHECK-X64: *** Dumping AST Record Layout
  21 // CHECK-X64: *** Dumping AST Record Layout
  22 // CHECK-X64-NEXT:    0 | struct A
  23 // CHECK-X64-NEXT:    0 |   (A vbtable pointer)
  24 // CHECK-X64-NEXT:    8:0-0 |   char a
  25 // CHECK-X64-NEXT:   16 |   struct B0 (virtual base)
  26 // CHECK-X64-NEXT:   16 |     int a
  27 // CHECK-X64-NEXT:      | [sizeof=24, align=8
  28 // CHECK-X64-NEXT:      |  nvsize=16, nvalign=8]
  29
  30 struct B : virtual B0 { short a : 1; };
  31
  32 // CHECK: *** Dumping AST Record Layout
  33 // CHECK-NEXT:    0 | struct B
  34 // CHECK-NEXT:    0 |   (B vbtable pointer)
  35 // CHECK-NEXT:    4:0-0 |   short a
  36 // CHECK-NEXT:    8 |   struct B0 (virtual base)
  37 // CHECK-NEXT:    8 |     int a
  38 // CHECK-NEXT:      | [sizeof=12, align=4
  39 // CHECK-NEXT:      |  nvsize=8, nvalign=4]
  40 // CHECK-X64: *** Dumping AST Record Layout
  41 // CHECK-X64-NEXT:    0 | struct B
  42 // CHECK-X64-NEXT:    0 |   (B vbtable pointer)
  43 // CHECK-X64-NEXT:    8:0-0 |   short a
  44 // CHECK-X64-NEXT:   16 |   struct B0 (virtual base)
  45 // CHECK-X64-NEXT:   16 |     int a
  46 // CHECK-X64-NEXT:      | [sizeof=24, align=8
  47 // CHECK-X64-NEXT:      |  nvsize=16, nvalign=8]
  48
  49 struct C : virtual B0 { char a : 1; char : 0; };
  50
  51 // CHECK: *** Dumping AST Record Layout
  52 // CHECK-NEXT:    0 | struct C
  53 // CHECK-NEXT:    0 |   (C vbtable pointer)
  54 // CHECK-NEXT:    4:0-0 |   char a
  55 // CHECK-NEXT:    5:- |   char
  56 // CHECK-NEXT:    8 |   struct B0 (virtual base)
  57 // CHECK-NEXT:    8 |     int a
  58 // CHECK-NEXT:      | [sizeof=12, align=4
  59 // CHECK-NEXT:      |  nvsize=8, nvalign=4]
  60 // CHECK-X64: *** Dumping AST Record Layout
  61 // CHECK-X64-NEXT:    0 | struct C
  62 // CHECK-X64-NEXT:    0 |   (C vbtable pointer)
  63 // CHECK-X64-NEXT:    8:0-0 |   char a
  64 // CHECK-X64-NEXT:    9:- |   char
  65 // CHECK-X64-NEXT:   16 |   struct B0 (virtual base)
  66 // CHECK-X64-NEXT:   16 |     int a
  67 // CHECK-X64-NEXT:      | [sizeof=24, align=8
  68 // CHECK-X64-NEXT:      |  nvsize=16, nvalign=8]
  69
  70 struct D : virtual B0 { char a : 1; char b; };
  71
  72 // CHECK: *** Dumping AST Record Layout
  73 // CHECK-NEXT:    0 | struct D
  74 // CHECK-NEXT:    0 |   (D vbtable pointer)
  75 // CHECK-NEXT:    4:0-0 |   char a
  76 // CHECK-NEXT:    5 |   char b
  77 // CHECK-NEXT:    8 |   struct B0 (virtual base)
  78 // CHECK-NEXT:    8 |     int a
  79 // CHECK-NEXT:      | [sizeof=12, align=4
  80 // CHECK-NEXT:      |  nvsize=8, nvalign=4]
  81 // CHECK-X64: *** Dumping AST Record Layout
  82 // CHECK-X64-NEXT:    0 | struct D
  83 // CHECK-X64-NEXT:    0 |   (D vbtable pointer)
  84 // CHECK-X64-NEXT:    8:0-0 |   char a
  85 // CHECK-X64-NEXT:    9 |   char b
  86 // CHECK-X64-NEXT:   16 |   struct B0 (virtual base)
  87 // CHECK-X64-NEXT:   16 |     int a
  88 // CHECK-X64-NEXT:      | [sizeof=24, align=8
  89 // CHECK-X64-NEXT:      |  nvsize=16, nvalign=8]
  90
  91 struct E : virtual B0, virtual B1 { long long : 1; };
  92 // CHECK: *** Dumping AST Record Layout
  93 // CHECK: *** Dumping AST Record Layout
  94 // CHECK-NEXT:    0 | struct E
  95 // CHECK-NEXT:    0 |   (E vbtable pointer)
  96 // CHECK-NEXT:    8:0-0 |   long long
  97 // CHECK-NEXT:   16 |   struct B0 (virtual base)
  98 // CHECK-NEXT:   16 |     int a
  99 // CHECK-NEXT:   20 |   struct B1 (virtual base)
 100 // CHECK-NEXT:   20 |     int a
 101 // CHECK-NEXT:      | [sizeof=24, align=8
 102 // CHECK-NEXT:      |  nvsize=16, nvalign=8]
 103 // CHECK-X64: *** Dumping AST Record Layout
 104 // CHECK-X64: *** Dumping AST Record Layout
 105 // CHECK-X64-NEXT:    0 | struct E
 106 // CHECK-X64-NEXT:    0 |   (E vbtable pointer)
 107 // CHECK-X64-NEXT:    8:0-0 |   long long
 108 // CHECK-X64-NEXT:   16 |   struct B0 (virtual base)
 109 // CHECK-X64-NEXT:   16 |     int a
 110 // CHECK-X64-NEXT:   20 |   struct B1 (virtual base)
 111 // CHECK-X64-NEXT:   20 |     int a
 112 // CHECK-X64-NEXT:      | [sizeof=24, align=8
 113 // CHECK-X64-NEXT:      |  nvsize=16, nvalign=8]
 114
 115 int a[
 116 sizeof(A)+
 117 sizeof(B)+
 118 sizeof(C)+
 119 sizeof(D)+
 120 sizeof(E)];